Shellab SSI10R-2 - Manual (Page 12)

SHEL LAB SI9/SI9R Shaking Incubator Operational Manual
12
Copyright © 2007 Sheldon Manufacturing. All rights reserved.
All specifications and features for this product are subject to change without notice.
To verify that your unit needs calibration
1. Be sure the temperature within the chamber has been stable at set point for twenty-four (24) hours.
2. The best calibration results are achieved when the certified reference thermometer is placed as close as possible to
your process samples. Insure that the thermometer is not touching any shelving.
3. Allow the reference thermometer and chamber to stabilize until the thermometer displays a constant value for one (1)
hour.
4. Compare the incubator and reference thermometer temperature readings.
If they match, your incubator is calibrated for that set point. No further adjustments are necessary. If they do not match,
proceed to the next section.
To calibrate your unit
1. Simultaneously press and hold the Set Temp Up and Down arrow keys. After approximately 5 seconds, the
temperature reading will
display “CP”. Release the Up and Down arrow keys.
2. While the display is blinking, alternately press the Up and Down arrow keys to select the temperature that matches
your reference thermometer (If you hold an arrow key, the display will scroll through the temperature settings).
Approximately 5 seconds after making an adjustment, the display will stop blinking. This indicates the control has
recorded the new temperature reading and has returned to normal operation.
3. For best results, verify the calibration after the unit has remained on for 24 hours and its temperature has varied by
no more than + 0.1
 C.
Setting the Shaker Speed
Your unit is equipped with a shaker mechanism that provides maximum oxygenation of your samples.
You control the shaking mechanism using the shaker function controls. These consist of an RPM on/off switch and a
digital display (1 RPM resolution) with up/down arrow pads. This display is marked
“Set RPM”.
To turn the shaking mechanism on
1. Be sure the door is completely closed.
2. Push the RPM switch to the On (I) position.
The shaker mechanism will start and stabilize at the last stored set point. If the door is opened or the RPM switch is
set to OFF (O), the mechanism will decelerate and stop.
To adjust the shaker speed (RPM)
1. Press either the Up or Down arrow key once. The display starts to blink from bright to dim and shows the RPM set
point.
2. While the display is blinking, alternately press the Up and Down arrow keys to select the desired RPM set point.
The incubator will store the displayed set point 5 seconds after you release the arrow pads. The display will stop
blinking and the present RPM will be displayed.
If either the Power or RPM switches are turned off (O), the controller remembers the last RPM value stored.
Using the Timer
Using the incubator’s timer, you can run the shaker platform at a preset RPM for a preset time. The timer can be set to a
maximum of 999 minutes (16 hours 39 minutes) in intervals of one (1) minute.
Upon completion of the timing cycle, the TIMER alarm LIGHT will turn ON and an alarm will sound, and the shaker
mechanism will come to a stop.
You can interrupt the timer if you need to access the shaking platform before the timer completes.
To start a timed shaking process
1. Turn the TIMER switch to the ON (I) position.
2. Press either the UP or DOWN arrow keys once. The display will start blinking off and on while showing the current
set time. Alternately press the UP and DOWN arrow key to set the desired time.
The incubator will store the displayed set point 5 seconds after you release the arrow pads. The display will stop
blinking and the present Timer setting will be displayed. The timer will begin counting down to zero.